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Sedgwick County Road and Bridge Gravel Pit Page 16 <br /> 112(c) Operation Reclamation Permit February 25, 2024 <br /> This division is found in the central plains of North America and is dominated by grassland <br /> vegetation commonly referred to as shortgrass,mixed grass,and tallgrass prairie, interspersed with <br /> evergreen and deciduous shrublands. The vegetation occurs on either glaciated or non-glaciated <br /> substrates, rolling to rugged topography, and fine textured to coarse-textured soils, and natural <br /> disturbances include grazing and fire. <br /> Group G144 Great Plains Shortgrass Prairie <br /> This semi-arid shortgrass grassland group occurs in the western half of the Western Great Plains <br /> and is usually composed of Bouteloua gracilis(mature height 6"-12") as the dominant or <br /> codominant species with associated graminoids Aristida purpurea (9.5. "-35.5"), Bouteloua <br /> curtipendula(15"-30"), Bouteloua hirsute(10"-20'), Buchloe dactyloides(4"-6"), Hesperostipa <br /> comata(1'-4'), Hesperostipa neomexicana, Pascopyrum smithii(1'-3',), Pleuraphis jamesii(11- <br /> "19", grows in bunches), Sporobolus cryptandrus(11"-40", produces dense, sand binding root <br /> networks), and scattered shrubs, dwarf-shrubs and cacti. <br /> Ecological System 7310 Western Great Plains Shortgrass Prairie <br /> This system is found primarily in the western half of the Western Great Plains Division ranges <br /> from the Nebraska Panhandle south into Texas and New Mexico. It is the most common system in <br /> this range. This system occurs primarily on fat to rolling uplands with loamy soils and is <br /> characterized by blue grama. Climate, fire, and grazing influence this system. The short grasses <br /> that dominate this system are extremely drought- and grazing-tolerant. In contrast to other prairie <br /> systems, fire is less important. However, historically, fires that did occur were often very <br /> expansive. Currently, fire suppression and more extensive grazing in the region have likely <br /> decreased the fire frequency even more. <br /> 9.2 Site Considerations <br /> During site visits,the vegetative cover is estimated to be approximately 80%which is dominated <br /> by grasses. There are sparse shrubs as well. No other vegetation is present at the site. The <br /> ecological system 7310 is capable of existing in the soil type in the affected area since it grows in <br /> loamy soils and the upper profile (0-6 inches) in the affected area are loamy. <br /> Z:lProjects&Sedgweck Countyl2023 Gravel Pit PermettenglPermet AEC <br />